Join MPM on November 17 as we celebrate engineering and other STEM fields at this dynamic Overnight! Build your own earthquake-resistant structure out of marshmallows, enjoy an action-packed Dome Theater showing of Dream Big, and explore science with real engineers.

This rusty patched bumblebee (Bombus affinis) specimen was collected in 1915 in Milwaukee. Rusty patched bumblebees live in prairie ecosystems and collect pollen and nectar from a variety of plants. Once a common sight in Wisconsin, the northern Midwest, and the northeastern states, land use changes and habitat loss have caused a steep decline in rusty patched bee populations. The species was listed as Federally Endangered under the Endangered Species Act in January 2017.

The cichlid fishes of the genus Labeotropheus were first described in 1927, when the type species, L. fuelleborni, was described as a new species by the German ichthyologist Ernst Ahl. A second species, L. trewavasae, was described in 1956 by the British zoologist Geoffrey Fryer.

John T. Curtis (1913–1961) was a renowned Wisconsin scientist best known for his contributions to the development of numerical methods in ecology and his seminal book, The Vegetation of Wisconsin: An Ordination of Plant Communities, published 1959. Curtis was born in Waukesha, WI and graduated from Carroll College (now University) in 1937. While an undergraduate at Carroll, Curtis made a substantial collection of bryophytes (mosses and liverworts) from around WI.